1990 Mazda Miata Differentials

Keep Your 1990 Mazda Miata in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1990 Mazda Miata looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Mount Bushings, Differential Pinion Seals, and Differential Oil. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Valvoline and National. For example, Valvoline Differentials start at just $14.49 with an average 4.8 star rating. National offer similar pricing and quality, backed by strong customer feedback. With over 5 reviews and a solid 4 star average, you can shop with confidence knowing other Mazda Miata owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1990 Mazda Miata Differential at Advance Auto Parts is around $30.43, with a range that starts at $11.99 and goes up to $87.99. With 11 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart, and DiffrlBushing start at just $11.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 1990 Mazda Miata in peak condition, inside and out.

Essential 1990 Mazda Miata Differentials

National – Shaft Repair Sleeve (Part No.99114)

Shaft Repair Sleeve

from

$27.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
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Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
See More

Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)

High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart

from

$41.99
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Product Features:
  • Better wear protection
  • Increased fuel efficiency
  • Better protection of the expensive catalytic emission system
  • Improved compatibility with fuels containing ethanol
  • Superior corrosion protection
  • Meets ILSAC GF-5 and Dexos1 performance requirements
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Mobil 1 – 75W-90 Full Synthetic Gear Lubricant, Extends Gear Life, 1 Quart (Part No.26101)

75W-90 Full Synthetic Gear Lubricant, Extends Gear Life, 1 Quart

from

$19.99
Mobil 1 Synthetic Gear Lubricant LS 75W-90 is a supreme, multi-purpose automotive gear lubricant that helps to provide exceptional thermal stability and resistance to high temperature oxidation, extending gear life due to minimal deposits. Helps to deliver outstanding protection against low speed/high torque wear with the capability to handle severe driving conditions while delivering smooth efficient performance. Mobil 1 Synthetic Gear Lubricant LS provides exceptional shear stability, corrosion protection, and enhanced frictional properties. Compared to conventional hypoid gear lubricants, Mobil 1 LS 75W-90 performs exceptionally over a wide range of temperatures to reduce wear at start up. Mobil 1 gear lube helps to minimize leakage and reduce contamination while providing good resistance to foaming to maintain film strength for reliable lubrication. Meets or exceeds the requirements of the following industry specifications: API GL-5.

Product Features:
  • Mobil 1 LS synthetic automotive gear lubricant exceeds the highest level of performance requirements of modern passenger vehicles
  • Helps to provide exceptional thermal stability and resistance to high temperature oxidation and extend gear life due to minimal deposits
  • Delivers outstanding protection against low speed/high torque wear, handling severe driving conditions with smooth, efficient performance
  • Compared to conventional hypoid gear lubricants, performs exceptionally over a wide range of temperatures to reduce wear at start up
  • Provides exceptional shear stability, corrosion protection, and enhanced frictional properties
  • Manufacturer Part Number: 104361
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Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

National – Multi-Purpose Seal (Part No.710217)

Multi-Purpose Seal

from

$19.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Auto Transmission Output Shaft Seal (Part No.S-710217)

Auto Transmission Output Shaft Seal

from

$12.99
Product Features:
  • Brand may vary by location
See More

National – Multi-Purpose Seal (Part No.710218)

Multi-Purpose Seal

from

$22.79
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

Energy Suspension – DiffrlBushing (Part No.11.4101G)

DiffrlBushing

from

$87.99
DiffrlBushing

Whiteline – Differential Mount Bushing (Part No.KDT954)

Differential Mount Bushing

from

$40.99
Whiteline’s differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.

Product Features:
  • Internal grease reservoirs provide continual self lubrication for optimum friction management.
  • Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
  • Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
See More

FAG US – Shaft Seal (Part No.SS2491)

Shaft Seal

from

$11.29
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
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FAG US – General Seal (Part No.SS2476)

General Seal

from

$52.99
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
See More

Most Popular Differential Mount Bushing for 1990 Mazda Miatas

Enhance your 1990 Mazda Miata with this popular Differential Mount Bushing we have in stock, for $40.99.

Whiteline – Differential Mount Bushing (Part No.KDT954)

Differential Mount Bushing

from

$40.99
Whiteline’s differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.

Product Features:
  • Internal grease reservoirs provide continual self lubrication for optimum friction management.
  • Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
  • Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
See More

Best-Selling 1990 Mazda Miata Differential Pinion Seals

Upgrade your Miata with one of our 2 best-selling Differential Pinion Seals, earning an average 1 stars rating across 1 reviews.

National – Multi-Purpose Seal (Part No.710217)

Multi-Purpose Seal

from

$19.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Auto Transmission Output Shaft Seal (Part No.S-710217)

Auto Transmission Output Shaft Seal

from

$12.99
Product Features:
  • Brand may vary by location
See More

Top-Quality Differential Oil for 1990 Mazda Miatas

Choose a high-quality OEM or aftermarket Differential Oil for Mazda Miatas and enjoy top-notch performance from $11.99.

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart

from

$11.99
Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:
  • Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart

from

$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:
  • FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
  • MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
See More

Our Top Pick for a 1990 Mazda Miata Differential Carrier Bushing

Invest in a durable Differential Carrier Bushing for your 1990 Mazda, knowing you’re getting trusted brands and expert craftsmanship.

Energy Suspension – DiffrlBushing (Part No.11.4101G)

DiffrlBushing

from

$87.99
DiffrlBushing

Top-Rated Differential Seals for 1990 Mazda Miatas

Make a smart move for your 1990 Mazda Miata with products all priced from $22.79 to $23.99.

National – Multi-Purpose Seal (Part No.710218)

Multi-Purpose Seal

from

$22.79
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Camshaft Seal (Part No.S-99139)

Camshaft Seal

from

$23.99
Product Features:
  • Brand may vary by location
See More

Top-Rated Differential Brands For Your 1990 Mazda Miata

When it comes to finding the perfect Differential for your 1990 Mazda Miata, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 6 trusted brands. We carry the most popular Differential brands including Valvoline and National, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $14.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1990 Mazda Miata, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1990 Mazda Miata Differentials

If you’re looking for a top-quality Differential for your 1990 Mazda Miata, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1990 Mazda Miata come highly rated, with over 2 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
DEXRON - VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
from $14.49
(2)
DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years, I pu”

Top-Quality National 1990 Mazda Miata Differentials

For those in search of a high-quality Differential for their 1990 Mazda Miata, Advance Auto Parts offers a great selection of National Differentials. With 1 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $22.79, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Multi-Purpose Seal
from $22.79
(2)
Multi-Purpose Seal
“Fits perfect on a 99 Miata with 4.3 torsen. Easy install, just tap until flush, metal ring acts as a stopper and eliminates any guesswork. National ma”

FAQs for 1990 Mazda Miata Differentials

What are the best-selling Differentials for 1990 Mazda Miatas?

Out of 11 Differentials that fit 1990 Mazda Miatas, the following parts are the top sellers:

What’s the price range for 1990 Mazda Miata Differentials?

The prices of Differentials for the 1990 Mazda Miata range from $11.99 up to $87.99 for the most premium parts.

What is the average price of a Differential for a 1990 Mazda Miata?

The average price for Differentials for the 1990 Mazda Miata is $30.43. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Mazda Miata model years?

Yes, we carry Differentials for 13 model years of Mazda Miatas between 1991 and 2005. The following model years are the most popular for Differential purchases: 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1997, and 1996.

What are the cheapest Differentials for my 1990 Mazda Miata?

Does Advance Auto Parts sell Differentials for any other 1990 Mazda models?

Yes. We stock Differentials for 8 other popular 1990 Mazda models. Some of the most popular are 1990 626 Differentials, 1990 MPV Differentials, 1990 RX-7 Differentials, 1990 B2600 Differentials, and 1990 929 Differentials.

What are the top-rated Differentials that fit the 1990 Mazda Miata?

Based on 5 reviews by customers, our 1990 Mazda Miata Differentials have an average customer rating of 4 stars. These are the highest-rated categories of Differentials for the 1990 Mazda Miata and their top-rated products:

What types of Differentials do you sell for my 1990 Mazda Miata?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1990 Mazda Miata:

Can I get help with 1990 Mazda Miata Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Differentials and more.

What is your return policy for Mazda Miata Differentials?

Advance Auto Parts keeps returns simple. For new Mazda Miata Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.